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From "Ben Anderson" <stuts_anderson...@hotmail.com>
Subject RE: Cannot load JDBC driver class 'null'
Date Thu, 11 Sep 2003 13:04:05 GMT
I have the jar in $CATALINA_HOME/common/lib

here's my info:

Server Information
Tomcat Version 	JVM Version 	JVM Vendor 	OS Name 	OS Version 	OS 
Architecture
Apache Tomcat/4.1.24 	1.4.1_02-b06 	Sun Microsystems Inc. 	Windows 2000 	5.0 
	x86

-Ben

>From: "Wynkoop, Robert M" <robert.m.wynkoop@citigroup.com>
>Reply-To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
>To: "'Tomcat Users List'" <tomcat-user@jakarta.apache.org>
>Subject: RE: Cannot load JDBC driver class 'null'
>Date: Thu, 11 Sep 2003 08:57:35 -0400
>
>I meant to say I can't delete the ../common/lib/classes12.jar when TomCat 
>is
>running.
>
>Blip,
>
>Robert Wynkoop
>
>-----Original Message-----
>From: Wynkoop, Robert M
>Sent: Thursday, September 11, 2003 7:54 AM
>To: 'Tomcat Users List'
>Subject: RE: Cannot load JDBC driver class 'null'
>
>
>I'm having the same problem.  From what I read the most common problem is
>that you jdbc driver jar is not in <tomcatehome>/common/lib dir.  
>Apparently
>if its only the the web apps ../WEB-INF/lib the tomcat runtime does not 
>have
>access to it.  But, I still have the same problem.  I know the jar file is
>getting used from ../common/lib because I can delete it when Tomkitty is
>fired up.
>
>What version of Tomcat are you using.  I'm using V4.1.27LE(No sax parser
>included.) JDK 1.3.  I'm currently doing a new install of tomcat LE.  If
>that does not work I'm trying Tomcat standard from
>http://www.tux.org/pub/net/apache/dist/jakarta/tomcat-4/
>
>Later,
>
>Rober Wynkoop
>-----Original Message-----
>From: Ben Anderson [mailto:stuts_andersonbd1@hotmail.com]
>Sent: Thursday, September 11, 2003 7:17 AM
>To: tomcat-user@jakarta.apache.org
>Subject: Cannot load JDBC driver class 'null'
>
>
>Ok, I know this topic has been posted many times, but I can't find anything
>to help.
>
>I have OracleDriver in [$CATALINA_HOME]/common/lib
>here's my server.xml
><GlobalNamingResources>
>......................
><Resource name="myDS" scope="Shareable" type="javax.sql.DataSource"
>auth="Container"/>
>     <ResourceParams name="myDS">
>       <parameter>
>         <name>validationQuery</name>
>         <value>select user from dual;</value>
>       </parameter>
>       <parameter>
>         <name>url</name>
>         <value>jdbc:oracle:thin:myMachine:1521:myDBName</value>
>       </parameter>
>       <parameter>
>         <name>username</name>
>         <value>hris</value>
>       </parameter>
>       <parameter>
>         <name>password</name>
>         <value>****</value>
>       </parameter>
>       <parameter>
>         <name>maxActive</name>
>         <value>4</value>
>       </parameter>
>       <parameter>
>         <name>maxWait</name>
>         <value>5000</value>
>       </parameter>
>       <parameter>
>         <name>driverClassName</name>
>         <value>oracle.jdbc.driver.OracleDriver</value>
>       </parameter>
>       <parameter>
>         <name>maxIdle</name>
>         <value>2</value>
>       </parameter>
>     </ResourceParams>
>   </GlobalNamingResources>
>
>and my web.xml:
>
>     <resource-ref>
>         <res-ref-name>jdbc/fsaDS</res-ref-name>
>         <res-type>javax.sql.DataSource</res-type>
>         <res-auth>Container</res-auth>
>         <res-sharing-scope>Shareable</res-sharing-scope>
>     </resource-ref>
>
>in the administrative tool:
>the top level Resources->DataSources looks ok as MyDS is listed there
>but the /my_context->Resources->Datasources gives:
>org.apache.jasper.JasperException: Exception retrieving attribute
>'driverClassName'
>
>and the localhost_log.xxx.txt (when it tries to use myDS):
>java.sql.SQLException: Cannot load JDBC driver class 'null
>
>Any help would be great - I've been trying everything - reloading with
>different configurations about 50 times - looking through books, mailing
>lists/archives.
>Thanks,
>Ben
>
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